Affiliation:
1. College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning, China
2. College of Pharmacy, Guangxi Traditional Chinese Medical University, Nanning, China
Abstract
Various solvent extracts of Phymatopteris hastata, a traditional Chinese
medicinal material, were screened for their antioxidant activities. Four
systems of in vitro testing were employed to investigate the antiradical and
antioxidant effect, i.e., the 2,2-diphenyl-1-picryhydrazyl (DPPH) and
2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) systems, the
hydroxyl radical scavenging assay and the reducing power. In addition,
butylated hydroxytoluene (BHT), a widely used synthetic antioxidant, was also
studied for comparison. The results revealed that the ethyl acetate extract
exhibited outstanding antioxidant activities, which was close or even
superior to BHT. Furthermore, the total phenolic (TP) and total flavonoid
(TF) contents of different extracts were measured, expressed as gallic acid
and rutin equivalent, respectively. The antioxidant activities and the TP/TF
content of different extracts followed the same order: ethyl acetate extract
> butyl alcohol extract > petroleum ether extract, showing a good correlation
between the antioxidant activities and the TP/TF content. The results showed
that these extracts, especially the ethyl acetate extract, were rich in
phenolics and flavonoids and could be considered as natural antioxidants.
Publisher
National Library of Serbia
Cited by
9 articles.
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